Wordnet 3.0
NOUN (1)
1. 
 the remaining parts of something that has been wrecked; 
- Example: "they searched the wreckage for signs of survivors"
The Collaborative International Dictionary of English v.0.48:
Wreckage \Wreck"age\ (?; 48), n.
   1. The act of wrecking, or state of being wrecked.
      [1913 Webster]
   2. That which has been wrecked; remains of a wreck.
      [1913 Webster]
WordNet (r) 3.0 (2006):
wreckage
    n 1: the remaining parts of something that has been wrecked;
         "they searched the wreckage for signs of survivors"